On 12/14/20 12:32 PM, Paolo Bonzini wrote:
> This will be used by SEV-ES to inject MSR failure via the GHCB.
>
> Signed-off-by: Paolo Bonzini <pbonzini@xxxxxxxxxx>
Reviewed-by: Tom Lendacky <thomas.lendacky@xxxxxxx>
(Changed Sean's email on this reply, but missed the others...)
> ---
> arch/x86/include/asm/kvm_host.h | 1 +
> arch/x86/kvm/svm/svm.c | 1 +
> arch/x86/kvm/vmx/vmx.c | 1 +
> arch/x86/kvm/x86.c | 8 ++++----
> 4 files changed, 7 insertions(+), 4 deletions(-)
>
> diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h
> index 8cf6b0493d49..18aa15e6fadd 100644
> --- a/arch/x86/include/asm/kvm_host.h
> +++ b/arch/x86/include/asm/kvm_host.h
> @@ -1285,6 +1285,7 @@ struct kvm_x86_ops {
>
> void (*migrate_timers)(struct kvm_vcpu *vcpu);
> void (*msr_filter_changed)(struct kvm_vcpu *vcpu);
> + int (*complete_emulated_msr)(struct kvm_vcpu *vcpu, int err);
> };
>
> struct kvm_x86_nested_ops {
> diff --git a/arch/x86/kvm/svm/svm.c b/arch/x86/kvm/svm/svm.c
> index 801e0a641258..4067d511be08 100644
> --- a/arch/x86/kvm/svm/svm.c
> +++ b/arch/x86/kvm/svm/svm.c
> @@ -4306,6 +4306,7 @@ static struct kvm_x86_ops svm_x86_ops __initdata = {
> .apic_init_signal_blocked = svm_apic_init_signal_blocked,
>
> .msr_filter_changed = svm_msr_filter_changed,
> + .complete_emulated_msr = kvm_complete_insn_gp,
> };
>
> static struct kvm_x86_init_ops svm_init_ops __initdata = {
> diff --git a/arch/x86/kvm/vmx/vmx.c b/arch/x86/kvm/vmx/vmx.c
> index 849be2a9f260..55fa51c0cd9d 100644
> --- a/arch/x86/kvm/vmx/vmx.c
> +++ b/arch/x86/kvm/vmx/vmx.c
> @@ -7701,6 +7701,7 @@ static struct kvm_x86_ops vmx_x86_ops __initdata = {
> .migrate_timers = vmx_migrate_timers,
>
> .msr_filter_changed = vmx_msr_filter_changed,
> + .complete_emulated_msr = kvm_complete_insn_gp,
> .cpu_dirty_log_size = vmx_cpu_dirty_log_size,
> };
>
> diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
> index 2f1bc52e70c0..6c4482b97c91 100644
> --- a/arch/x86/kvm/x86.c
> +++ b/arch/x86/kvm/x86.c
> @@ -1642,12 +1642,12 @@ static int complete_emulated_rdmsr(struct kvm_vcpu *vcpu)
> kvm_rdx_write(vcpu, vcpu->run->msr.data >> 32);
> }
>
> - return kvm_complete_insn_gp(vcpu, err);
> + return kvm_x86_ops.complete_emulated_msr(vcpu, err);
> }
>
> static int complete_emulated_wrmsr(struct kvm_vcpu *vcpu)
> {
> - return kvm_complete_insn_gp(vcpu, vcpu->run->msr.error);
> + return kvm_x86_ops.complete_emulated_msr(vcpu, vcpu->run->msr.error);
> }
>
> static u64 kvm_msr_reason(int r)
> @@ -1720,7 +1720,7 @@ int kvm_emulate_rdmsr(struct kvm_vcpu *vcpu)
> trace_kvm_msr_read_ex(ecx);
> }
>
> - return kvm_complete_insn_gp(vcpu, r);
> + return kvm_x86_ops.complete_emulated_msr(vcpu, r);
> }
> EXPORT_SYMBOL_GPL(kvm_emulate_rdmsr);
>
> @@ -1747,7 +1747,7 @@ int kvm_emulate_wrmsr(struct kvm_vcpu *vcpu)
> else
> trace_kvm_msr_write_ex(ecx, data);
>
> - return kvm_complete_insn_gp(vcpu, r);
> + return kvm_x86_ops.complete_emulated_msr(vcpu, r);
> }
> EXPORT_SYMBOL_GPL(kvm_emulate_wrmsr);
>
>
